SWOOP

[verb] [I] - to move very quickly but smoothly through the air, esp. down from a height in order to attack, or (informal) to make a sudden attack on a place or group of people in order to surround and catch themYou can see the bats begin to swoop and dart at nightfall.The eagle swooped down to snatch a young rabbit.(informal) Undercover police swooped on three houses in Bristol at 5 a.m. this morning.